Fuel gauge

Abstract

A fuel gauge includes a float vertically moving with the level of fuel in a fuel tank, an arm having a free end to which the float is supported, a detection body for supporting a base end of the arm and detecting the displacement amount of the arm and comprising a member separate and distinct from the arm, and an arm holder for detachably mounting the base end of the arm to the detection body.

What is claimed is:  
     
         1 . A fuel gauge, comprising: 
 a float which vertically moves with a level of fuel in a tank;    an arm having a free end to which the float is supported;    a detection body which supports a base end of the arm, the detection body detecting a displacement amount of the arm, the detection body comprising a member separate and distinct from the arm; and    an arm holder which detachably mounts the base end of the arm to the detection body.    
     
     
         2 . The fuel gauge as claimed in  claim 1 , wherein the arm holder comprises a holder-side engagement, and the detection body comprises a detection-side engagement, wherein with the holder-side engagement and the detection-side engagement engaged with each other in one assembling direction, the arm is mounted to the detection body.  
     
     
         3 . The fuel gauge as claimed in  claim 1 , wherein the detection body comprises a rotor and a stator for rotatably supporting the rotor, the rotor having a hole axially formed therethrough, wherein with the base end of the arm inserted into the hole, the arm is mounted to the detection body.  
     
     
         4 . The fuel gauge as claimed in  claim 3 , wherein the arm has a front end rotatably supported by the detection body.  
     
     
         5 . The fuel gauge as claimed in  claim 1 , wherein the base end of the arm is linearly movably supported by the detection body.  
     
     
         6 . The fuel gauge as claimed in  claim 4 , wherein the front end of the arm is inserted into the hole of the rotor with a deep stroke.  
     
     
         7 . The fuel gauge as claimed in  claim 2 , wherein the holder-side engagement comprises resilient latching pawls arranged circumferentially to axially protrude to a front end of the holder-side engagement, and engaging grooves formed between the adjacent latching pawls.  
     
     
         8 . The fuel gauge as claimed in  claim 7 , wherein the detection-side engagement comprises insertion recesses formed circumferentially to have a range corresponding to the resilient latching pawls, engaging protrusions formed between the adjacent insertion recesses to protrude radially, and a circumferential groove formed at a position interior of the insertion recesses and the engaging protrusions.  
     
     
         9 . An arrangement, comprising: 
 a tank which accumulates fuel;    a float which vertically moves with a level of fuel in the tank;    an arm having a free end to which the float is supported;    a detection body which supports a base end of the arm, the detection body detecting a displacement amount of the arm, the detection body comprising a member separate and distinct from the arm; and    an arm holder which detachably mounts the base end of the arm to the detection body.    
     
     
         10 . The arrangement as claimed in  claim 9 , wherein the arm holder comprises a holder-side engagement, and the detection body comprises a detection-side engagement, wherein with the holder-side engagement and the detection-side engagement engaged with each other in one assembling direction, the arm is mounted to the detection body.  
     
     
         11 . The arrangement as claimed in  claim 9 , wherein the detection body comprises a rotor and a stator for rotatably supporting the rotor, the rotor having a hole axially formed therethrough, wherein with the base end of the arm inserted into the hole, the arm is mounted to the detection body.  
     
     
         12 . The arrangement as claimed in  claim 11 , wherein the arm has a front end rotatably supported by the detection body.  
     
     
         13 . The arrangement as claimed in  claim 9 , wherein the base end of the arm is linearly movably supported by the detection body.  
     
     
         14 . The arrangement as claimed in  claim 12 , wherein the front end of the arm is inserted into the hole of the rotor with a deep stroke.  
     
     
         15 . The arrangement as claimed in  claim 10 , wherein the holder-side engagement comprises resilient latching pawls arranged circumferentially to axially protrude to a front end of the holder-side engagement, and engaging grooves formed between the adjacent latching pawls.  
     
     
         16 . The arrangement as claimed in  claim 15 , wherein the detection-side engagement comprises insertion recesses formed circumferentially to have a range corresponding to the resilient latching pawls, engaging protrusions formed between the adjacent insertion recesses to protrude radially, and a circumferential groove formed at a position interior of the insertion recesses and the engaging protrusions.